參數(shù)資料
型號: TMS34020
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS PROCESSORS
中文描述: 圖形處理器
文件頁數(shù): 69/82頁
文件大?。?/td> 1359K
代理商: TMS34020
TMS34020, TMS34020A
GRAPHICS PROCESSORS
SPVS004D – MARCH 1990 – REVISED NOVEMBER 1993
69
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
local bus timing: RAS, CAS0–CAS3, WE, TR/QE, and SF
NO.
PARAMETER
’34020-32
’34020A-32
’34020A-40
UNIT
MIN
MAX
MIN
MAX
99b
tw(REL)
tw(CEH)
tw(CEL)
td(REL-CE
)
Pulse duration of RAS low
4ntQ–12+ s
2tQ–12
4ntQ–4+ s
2tQ–10
ns
100
Pulse duration of CAS high
ns
101
Pulse duration of CAS low
Delay time RAS low to CAS
2tQ–8
2tQ–8
ns
102
4tQ–12+ s
4tQ–4+ s
ns
e
th(REL-RCV)
Hold time, RAS valid low after column address
valid
3tQ – 22
3tQ – 12
ns
f
th(CEL-RCV)
Hold time, CAS valid low after column address
valid
3tQ – 22
3tQ – 12
ns
h
th(LAV1-WEH)
Hold time, LAD data valid after WE valid high
tQ – 15
tQ – 12
ns
n= number of GSP data cycles in in the memory access.
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